must lactate
Verbo regular: lactate - lactated- lactated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must lactate
you must lactate
he must lactate
we must lactate
you must lactate
they must lactate 	I must be lactating
you must be lactating
he must be lactating
we must be lactating
you must be lactating
they must be lactating	I must have lactated
you must have lactated
he must have lactated
we must have lactated
you must have lactated
they must have lactated	I must have been lactating
you must have been lactating
he must have been lactating
we must have been lactating
you must have been lactating
they must have been lactating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't lactate
you mustn't lactate
he mustn't lactate
we mustn't lactate
you mustn't lactate
they mustn't lactate 	I mustn't be lactating
you mustn't be lactating
he mustn't be lactating
we mustn't be lactating
you mustn't be lactating
they mustn't be lactating	I mustn't have lactated
you mustn't have lactated
he mustn't have lactated
we mustn't have lactated
you mustn't have lactated
they mustn't have lactated	I mustn't have been lactating
you mustn't have been lactating
he mustn't have been lactating
we mustn't have been lactating
you mustn't have been lactating
they mustn't have been lactating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I lactate?
must you lactate?
must he lactate?
must we lactate?
must you lactate?
must they lactate? 	must I be lactating?
must you be lactating?
must he be lactating?
must we be lactating?
must you be lactating?
must they be lactating? 	must I have lactated?
must you have lactated?
must he have lactated?
must we have lactated?
must you have lactated?
must they have lactated? 	must I have been lactating?
must you have been lactating?
must he have been lactating?
must we have been lactating?
must you have been lactating?
must they have been lactating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I lactate?
mustn't you lactate?
mustn't he lactate?
mustn't we lactate?
mustn't you lactate?
mustn't they lactate? 	mustn't I be lactating?
mustn't you be lactating?
mustn't he be lactating?
mustn't we be lactating?
mustn't you be lactating?
mustn't they be lactating? 	mustn't I have lactated?
mustn't you have lactated?
mustn't he have lactated?
mustn't we have lactated?
mustn't you have lactated?
mustn't they have lactated? 	mustn't I have been lactating?
mustn't you have been lactating?
mustn't he have been lactating?
mustn't we have been lactating?
mustn't you have been lactating?
mustn't they have been lactating?